about 80 % of day's need for water. remaining water need is met from consumed foods

Be able to calculate fluid and sodium losses from sweat

1 lb of weight loss = 16 oz fluid. Oz/34 = grams of sodium

grams of sodium/0.4 = grams of salt

Symptoms of dehydration at 0-2% weight loss

thirst, loss of appetite

4% weight loss

weakness, lagging pace, apathy, nausea, emotional instability

6% weight loss

tingling in arms, hands, feet, stumbling, headache, heat exhaustion

8% weight loss

increasing mental weakness, labored breathing, dizziness, confusin

20% weight loss

death

Pica

Craving of non-food items

Cretinism

The stunting of body growth and poor mental development in the offspring that results from inadequate maternal intake of iodide during pregnancy.

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